Pocket-knife



(No Model.)

J.G.F.SGHENOK.(

POUKBT KNIFE.

Patented Oct. 15, 1889..

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lnyeui'ar. 7074/71 w//mw/c UNITED STATES PATENT OFFICE.

JOHN C. F. SCHENOK, OF MOLINE, ILLINOIS.

POCKET-KNIFE.

SPECIFICATION forming part of Letters Patent No. 412,799, dated October15, 1889. Application filed May 29, 1883. Serial No. 275,523. (Nomodel.)

To all whom it may concern.-

Be it known that I, JOHN C. F. SCHENCK, a citizen of the United States,residing in M0- line, in the county of Rock Island and State ofIllinois, have invented a new and useful Knife, of which the followingis a specification.

My invention relates to improvements in what are usually termedpocketknives, consisting of a handle and pivotally-connectedknife-blade; and the object of my improvement is to provide a fixed orremovable lever-arm in connection with the pivoted knifeblade, againstwhich power may be applied to swing the knife-blade out of the handle,or, as it is usually termed, to open the knife. I attain these objectsby the mechanism illustrated in the accompanying drawings, in whichFigure l is a side view of the knife, the blade being closed, as alsothe arm. Fig. 2 is a side View of the knife, the blade being closed andthe arm opened. Fig. 3 is a side view of the knife, the blade beingopened one-half. Fig. 4. is a side view of the knife, the blade beingopened three-quarters. Fig. 5 is a side view of the knife, the bladebeing entirely open ed and arm resting upon the top or back of thehandle. Fig. 6 is a side view of the arm or lever-arm. Fig. 7 is a topor plan View of the arm, and Fig.8 is a side view of the knife-blade.

Similar letters refer to similar parts throughout the several views.

The handle A, knife-blade B, spring j, and rivet K constitute anordinary pocket-knife. To the back and at the rear end of the knifeblade B, I make a shoulder I), through which is a perforation c, andbelow is another shoulder a. At the rear end of the knifeblade, throughits main shoulder, is the perforation (Z, common to all knives known aspocket-knives, through which and the perforations Z of the handle Apasses the rivet K. An arm G is pivoted at its end by the rivet 1',through perforations in its shoulders e and f, which straddle theshoulder 17 of the knife-blade B. On the top of arm C and near itspivoted end is a depression or slot g, to accommodate the spring jduring the movements of the arm C and knife-blade B.

When the blade of the knife is closed, as shown in Fig. 1, and it isdesired to open it, the arm 0 is thrown back, as shown in Fig. 2, andpressure is applied to the under side, which throws open the blade, asshown in Figs. 3, 4 and 5, and when the blade is entirely open the arm Crests upon the back of the handle A, as shown in Fig. 5. A pocketknifeso constructed is especially convenient to persons who, throughmisfortune, have lost one hand, and it is also desirable for use toothers, because the knife may have a stiff and strong springj and yet bymy device be easily opened.

It will be readily seen that,without departing from the scope of myinvention, the arm C may be changed in various forms-as, for instance,the slot g may extend through the arm and to the opposite end, and soformed as to be flush with the back of the blade when closed, or soformed as to rest by the side of the blade, or capable of being detachedfrom the blade by being constructed so that one end can be inserted foruse in a slot or other receptacle formed in the blade and thereafterdetached and secured in a sheath formed in the handle for that purpose.So, too, it will be seen that the shoulder Z) of the knife-blade can bedispensed with and some other mechanical equivalent substituted for thepurpose of making permanent or temporary con nection between theknife-blade B and the arm 0, for the purposes herein stated, withoutdeparting from the scope of my invention. Itwill also be readily seenthat my invention can be attached to knives having one or more blades.

hat I claim as my invention, and secure by Letters Patent, is-

In a knife having a handle and pivoted knife-blade, an arm attached nearthe pivoted end of the knife-blade for applying force against the bladefor the purpose of swinging the same open or out of the handle,substantially as described.

desire to JOHN C. F. SCI-IENOK. Witnesses:

FRITZ SUREMIEHL, W. G. W ARRINER, WM. P. BETTENDORF.

